9b798d50df
Currently this is ifdef'ed under SH-3 and SH-4A, but there are other CPUs that will need this as well. Given the size of the existing data structures, this doesn't cause any additional cacheline utilization for the existing users, so has no direct impact on the data structures. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
#ifndef __SH_INTC_H
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#define __SH_INTC_H
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typedef unsigned char intc_enum;
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struct intc_vect {
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intc_enum enum_id;
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unsigned short vect;
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};
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#define INTC_VECT(enum_id, vect) { enum_id, vect }
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#define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq))
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struct intc_group {
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intc_enum enum_id;
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intc_enum enum_ids[32];
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};
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#define INTC_GROUP(enum_id, ids...) { enum_id, { ids } }
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struct intc_mask_reg {
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unsigned long set_reg, clr_reg, reg_width;
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intc_enum enum_ids[32];
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#ifdef CONFIG_SMP
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unsigned long smp;
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#endif
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};
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struct intc_prio_reg {
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unsigned long set_reg, clr_reg, reg_width, field_width;
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intc_enum enum_ids[16];
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#ifdef CONFIG_SMP
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unsigned long smp;
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#endif
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};
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struct intc_sense_reg {
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unsigned long reg, reg_width, field_width;
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intc_enum enum_ids[16];
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};
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#ifdef CONFIG_SMP
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#define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8)
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#else
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#define INTC_SMP(stride, nr)
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#endif
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struct intc_desc {
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struct intc_vect *vectors;
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unsigned int nr_vectors;
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struct intc_group *groups;
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unsigned int nr_groups;
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struct intc_mask_reg *mask_regs;
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unsigned int nr_mask_regs;
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struct intc_prio_reg *prio_regs;
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unsigned int nr_prio_regs;
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struct intc_sense_reg *sense_regs;
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unsigned int nr_sense_regs;
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char *name;
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struct intc_mask_reg *ack_regs;
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unsigned int nr_ack_regs;
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};
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#define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a)
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#define DECLARE_INTC_DESC(symbol, chipname, vectors, groups, \
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mask_regs, prio_regs, sense_regs) \
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struct intc_desc symbol __initdata = { \
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_INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
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_INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
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_INTC_ARRAY(sense_regs), \
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chipname, \
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}
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#define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups, \
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mask_regs, prio_regs, sense_regs, ack_regs) \
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struct intc_desc symbol __initdata = { \
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_INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
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_INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
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_INTC_ARRAY(sense_regs), \
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chipname, \
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_INTC_ARRAY(ack_regs), \
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}
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void __init register_intc_controller(struct intc_desc *desc);
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int intc_set_priority(unsigned int irq, unsigned int prio);
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#endif /* __SH_INTC_H */
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